
.sieves {
  position: relative;
  /* perspective: 1000px;
  perspective-origin: 100% 100%; */
  width: 300px;
  height: 300px;
  margin: 100px auto;
  transform-style: preserve-3d;
  transform: rotateY(0deg);
}
.sieves div {
  width: 100px;
  height: 100px;
  position: absolute;
  top: 0;
  left: 0;
  backface-visibility: hidden;
  font-size: 50px;
  line-height: 100px;
  text-align: center;
}
.one {
  background:rgba(255, 0, 0, 0.9);
}
.two {
  background: rgba(0, 255, 0, 0.9);
  transform: rotateX(-90deg) translateY(100%) ;
  transform-origin: bottom;
}
.three {
  background: rgba(0, 0, 255, 0.9);
  /* transform: rotate3d(1, 0, 0, 0); */
  transform: rotateY(-90deg) translateX(-100%);
  transform-origin: left;
}
.four {
  background: rgba(255, 255, 0, 0.9);
  transform: rotateY(90deg) translateX(100%);
  transform-origin: right;
}
.five {
  background: rgba(0, 255, 255, 0.9);
  transform: rotateX(90deg) translateY(-100%);
  transform-origin: top;
}
.six {
  background: rgba(255, 0, 255, 0.9);
  transform: rotateY(180deg) translateZ(100px);
  transform-origin: center center;
}